Time switch



H. W. DAGGS April 13 1926.

TIME SWITCH Filed ser. 12.

`1924 2 Sheets-Sheet l W e@ i? f7 46 f e f3' 11 55 INVENToR. 711m Wl? ATToRNEY.

Patented Apr. 13, 1926.

UNITED srarss ',rrics.

HERBERT W. DAGGS, O17' CLEVELAND, OHIO.

TIME SWITCH.

Application lcd September 12, 1924. Serial No. 737,329.

To all whom t may concern:

Be it known that I, HERBERT W. DAGes, a citizen of the United States, residing at Cleveland, in the county ot Cuyahoga and State of Ohio, have invented certain 'new and useful Improvements in Time Switches, of which the following is a specification.

This invention relates to improvements in time switches having for an object to provide a structure such as will permit ready access to any of the working parts.

Another object is to provide a time switch having a sectional housing which may be readily separated and when assembled will provide a moisture prooi protector itor the working parts of the switch.

A further object is to provide a time switch housing in which the base portion and junction box are formed as a unit and re movably connected to a front plate.

It is also an object to provide in a time switch of this character having a connection between the rotatable switch and the switch operating mechanism, a connection such as will eliminate fusion of the delicate parts in. the event ot an overcharge ot current.

Other objects will be in part obvious and in part pointed out hereinatter.

In order that the invention and its mode of operation may be readily understood by persons skilled inthe art, I have in the accompanying illustrative drawings, and in the following detailed description based thereon set out the preferred embodiment of the same.

Figure 1 is a front elevation ot a time switch constructed in accordance with my invention;

Figure 2 is a side elevation thereof;

Figure 3 is a vertical longitudinal section thereof;

Figure 4 is a detail showing the means for providing moisture proof ljoints `or connections between the parts making up the time switch housing;

Figure 5 is a plan view o't the interior oi' the base portion ott the housing.

Figure 6 is a view illustrating the connection between the switch and switch operat ingl mechanism by which :tusing ot the mech.A anism is eliminated.

Figure 7 is a detail perspective view connection; and f Figure 8 is a vertical longitudinal sectional view of the parts shown in Figure 7.

of this Having more particularreference to the drawings throughout which similar" characters oi reference designate similar parts, this improved time switch may be stated as comprising the usual switch operating mechanism M which includes an intermittently operable shait S having connection with a rotatable switch R as shown i'n Figure 3. This mechanism as shown is supported upon a set of spaced posts 10 which are integrally cast with the hase portion 11 of the switch housing.

Broadly stated, this housing comprises a base and top or tront cover jplate inter-connected by means of a side wall'whose open ends are snugly iitted into channels formed in the base and front portions.

The base portion 11 is provided with an upstanding peripheral wall 12 whoseinner tace 13 entends to a point beyond the outer 7 corner of said wall, thereby providing a rib as shown in Figures 3 and 4.-. Between the inner and outer edges of the peripheral wall 12 I form a channel 1&1 which is substantially V-shaped, the rib 13 forming the longitudinal inner wall ot. the'channel. At one end an apertured ear 15 is cast integral toprovide means for hanging the time switchupon a support. As shown in Figure 3, the base portion 11 is extended at one end beyond the peripheral wallfl to form the base of a junction box 16. The outer wall 17 ot the peripheral channel 'forms one upstanding wall ot the junction box, the side walls 18 being 'formed or cast integral with said outer wall 17. rIhe top and end ot the junction box are closed by means oi. cover plates 19 and 20 respectively,vthese plates being secured in position by means Otmachine screws or the like. This junction box is designed toserve as a point of connection between the wires carried by the time switch and those coming in from the power lines. A set ot spaced openings 22 is arranged as shown in Figure 3 to provide connection betweenuthe main housing` and the junction box. As illustrated, a set ot upstanding apertured bosses 23 is provided and designed to receivethe heads ot connecting bolts or rods 211 whose outer ends are threadedly' engaged in socketscarried by the top or outer cover plate 25. VThis top or outer cover plate 25 is provided with a channel Q6 and long and short walls formed similarly to those of the peripheral wall 12, carried by Cil the base. This top plate is also provided with a centra-l. opening 27 which is closed by means of a closure comprising a glass plate 28 arranged in an open frame 29 which as shown in Figure l is hinged at 30 to the cover or top plate 25. locking screw 3l is arranged opposite the hinge so that the closure may be locked in engagement with the top plate 25. To insure against entry of moisture into the housing, I

plate 25 and the end closure, this feature being shown in Figure 3 ot the accompanying drawings.

An open' ended shell or wall 38, preferably formed of sheet steel or the like, is arranged with its edges snugly iitted into the peripheral channels of the base and top or cover plates. provided: withy a packing strip 84 which is preferably formed ot rubber so that it will snuglyl engage the walls of the channels and the-edges'of the shell 33, thereby absolutely preventingl entryl ot moisture into the time switch housing.

It' is understood that at' times it is necessary to have accessito the time switch and the mechanismv which moves the rotatable switcln. Hereto'ore this has been extremely ditlicult and itis my object to facilitate adjustment of' thesev parts through providing a' structure made up of separable parts. rllhis isI accomplished without forming fi number ofi joints which would ordinarily admit' moisture o'r the like to= the interior of the housing;

Heretofore, in connecting the rotatable switch' and' switch operating mechanism,the usual" porcelain linger piece has. been removed and a: short metall sha-ft arranged to form direct connection between this mechanism: andthe spindle ot theA switch. This structure is extremely undesirable in that an over charge' of current coming into the switchA naturally passes on into the mechanism and fuses or burns out many` of the delicate parts, thereby necessitating loss ot time and money in repairs. I overcome these objections through providing a connection asshown in Figures 6, 7 and S,-

rendering unnecessary, the removal of the usual porcelain linger piece.

If looselj,7 mount upon the inner or lowery squared end ot the switch operating shai'it S, ayoke member 36 which as shown isr substantiallyY inverted U-shapcd and includes pair-s of spaced legs 37 which enga-ge over the longitudinal side :faces of the porcelain linger piece F. rlhe usual porcelain finger piece of a rotatable switch isenlarged centrally and it is for this reason that the pairs of spaced legs 1 37 are formed, it being obvious that through this formation the legs provide aV rubber packing 32 between the top or cover These channels as shown are` will rather snugly engage adjacent the end portions of the finger piece.-

It is quitel apparent that tlfirougli employing a connection of this type, an overcharge of current coming into the switch will have no effect whatsoever upon the switch operating mechanism since the porcelain finger piece F will serve as an insulator, thereby preventing passage of the current to said mechanism.

As illustrated, in` Figures 3 andv 5 I' have provided in one side of the base portion an opening 38 designed to permit insertion of oil which will saturate ay sponge 29 and in` turnoil the switch operating mechanism and relieve the' interior of the switch housing ot' dampness or moisture. It is quite obvious tha-t through the construction heretofore described l have providedk a time switch of strong constructiony and one which willv be entirely reliable.

ilanitestly, the construction shown is capablo of considerable modiiicatfion and such modification as may fall within the scope or my claiinsI consider within the spirit orq my invention.

I claim:

1. A sectionalv time switch housing com*- prising a back plate having'l a continuous channeled peripheral outwardly extending wall, a portion of the lower end of said base being extended to form the'bas'eoi a junction box, a set of supporting posts' integral withthe inner face otl the backplat-e, a packing arranged in they channeled walls,A walls cast integral with and at one endl of thebase platel to form sides of the junction boX, an open ended shell having4 the walls forming one vend snugly engaging said packing material, a front plate having a channeled peripheral outwardly extending wall, a packing material? insaid channeled wall to engage the outer'end oi1 said shell, and bolt` means within the housing iorv separably inter-connecting the back and front plates.

2. A sectional time switch housing' comprising a back plate and al front plate'having relatively alined channeled peripheral walls formed integrally therewith, a packing material set-into the channeled walls, an open ended shell having its end walls snugly engagingr the packing material, bolts arranged within the housing to separably inter-connect the back and iront plates, said iront plate having an opening, a closure hinged-to the iront plate to'cover said opening, a compressible packing arranged bef tween the cover and Jfront plate and supporting posts; integrally formedonthe back plate and extending'toward the trout plate.

ln testimony wher-coil alla my signature.

HERBERT lV. DAG-GS. 

